Lga12 with soldermask stencils and a hotplate doesn't work? Should be doable for prototype quality. Might want a computer controlled pick and place with a sucti

Lga12 with soldermask stencils and a hotplate doesn't work? Should be doable for prototype quality. Might want a computer controlled pick and place with a suction arm/microscope but it's definitely feasible. Look up some of the gpu repair guys for inspiration, they often do some insane bga parts (nand chips) by hand.